INCOME TAXES Income Tax Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 19.7	$ 7.6
Income Tax Expense, Increase from Prior Year, Percent Change	159.20%
Effective income tax rate	21.60%	7.00%
Effective Tax Rate, Increase from Prior Year, Basis Point Change	1,460